DGUV Information 200-006 - Training for work on vehicles with high voltage systems

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Abschnitt 5.4 - 4. Accident assistance

Where vehicles have suffered light damage in an accident, the accident recovery services repair it on site in order to make the vehicles drivable immediately if at all possible. More major damage is always repaired in the workshop.

Where vehicles have been damaged so severely that flammable liquids leak, the accident recovery service has the task of safeguarding the danger zone.

The HV components are fitted within the vehicle in such a way as to protect them against damage in the event of an accident. Despite this, parts of a damaged vehicle could be live following an accident. The safety of the emergency service personnel in such cases must be assured. For this purpose the emergency services must isolate the vehicle's electrical system and safeguard any exposed live parts. Guides providing corresponding information on particular vehicles are available for emergency service personnel.

The topics covered by the training stated below assume that repairs to the HV system are not being performed outside the workshop.

Topics covered by training:

  • Location of the HV components and lines in series production vehicles,

  • Operation of vehicles and the associated equipment,

  • Performance of general tasks which do not require isolation of the HV system,

  • Performance of all mechanical tasks on the vehicle (but: don't touch orange!),

  • Electrical isolation of the vehicle as an additional safety measure,

  • Appointment of the individual to be consulted in the event of uncertainty,

  • Impermissible work on the vehicle.

The instruction must encompass at least 2 teaching periods.